@article{10272/19103,
year = {2020},
month = {10},
url = {http://hdl.handle.net/10272/19103},
abstract = {The organic geochemistry of six oil samples from the offshore Block 17 (Lower Congo Basin,
northwestern Angola) was studied by a combination of classical biomarker and extended diamondoid
analyses to elucidate source rock facies, the extent of biodegradation, and thermal maturity. Based on
molecular data, oils are interpreted as depicting a mixture of two pulses of hydrocarbon generation
probably from the Bucomazi and Malembo formations. Geochemical results also gave evidence
of mixing of a lacustrine siliciclastic-sourced oil charge and a second more terrestrially derived oil
type in the samples analyzed. A single genetic oil family was identified through hierarchical cluster
analysis; however, two groups of oils were identified on the basis of their biodegradation levels
using the Peters/Moldowan scale. Lower and upper Malembo oils have a slight depletion and a
notable absence of n-alkanes, suggesting PM levels of 1 and 2, respectively. Most molecular maturity
parameters of the oil samples suggest a maturity level equivalent to the onset of the peak of the oil
generative window.},
publisher = {MDPI},
title = {Classical Biomarker and Quantitative Extended Diamondoid Analysis Fingerprints for Crude Oils from Deepwater Developments in Block 17, Lower Congo Basin, Angola},
doi = {10.3390/ijerph17197204},
author = {Boente López, Carlos and Márquez Martínez, Gonzalo and Romero Macías, Emilio Manuel and Guzmán, Marco Antonio and Rodrigues, Cristina and Marín, Patricia and Márquez Martínez, Gonzalo},
}